From: | Stephen Frost <sfrost(at)snowman(dot)net> |
---|---|
To: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
Cc: | Tom Lane <tgl(at)svr1(dot)postgresql(dot)org>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: ALTER TABLE TODO items |
Date: | 2004-05-05 15:30:36 |
Message-ID: | 20040505153036.GC11196@ns.snowman.net |
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* Bruce Momjian (pgman(at)candle(dot)pha(dot)pa(dot)us) wrote:
> Do we still want this TODO?
>
> o Allow columns to be reordered using ALTER ... POSITION i col1 [,col2];
> have SELECT * and INSERT honor such ordering
>
> I don't think so. As I remember it was part of doing logical attribute
> numbers as a way to add ALTER COLUMN TYPE, but because we now use table
> recreate to implement this, it is unlikely we will ever add logical
> attribute numbers (adds too much complexity to the code).
Does using table recreate break views built against the table? I recall
someone saying the old way did, it would be very nice if that could be
fixed or at least added to the TODO. I like the idea of being able to
alter the positions of the columns too, but that's not as big of an
issue as breaking views.
Stephen
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